Afrancis turbine has a diameter of 1.4m and rotates at 430rpm. water enters the runner without shock with a flow velocity of 9.5 m/s and leaves the runner without whirl with an absolute velocity of 7m/s. the difference between the sum of the static and potential heads at entrance to the runner and at the exit from the runner is 62 m. if the turbine develops 12250kw and has a flow rate of 12m 3/s of water when the net head is 115m, find (a) the absolute velocity of the water at entry to the runner and the angle of the inlet guide vanes, (b) the entry angle of the runner blades and (c) the head lost in the runner.